Curculionidae Latreille, 1802
Eucyllus carinarostris Pelsue & Sleeper, 1972
Eucyllus cinereus Pelsue & Sleeper, 1972
Eucyllus echinus Van Dyke, 1936
Eucyllus horridus Hatch, 1971
Eucyllus nevadensis (Casey, 1888)
Eucyllus saesariatus Pelsue & Sleeper, 1972
Eucyllus unicolor Van Dyke, 1936
Eucyllus vagans Horn, 1876
